linux-kernel - Re: [REGRESSION] S3 resume on SandyBridge doesn't work with NX protection (5bd5a45)

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Message-ID: <1295964447.4d3ed91f63aa3@imp.free.fr>
Date:	Tue, 25 Jan 2011 15:07:27 +0100
From:	castet.matthieu@...e.fr
To:	Matthias Hopf <mhopf@...e.de>
Cc:	Lin Ming <ming.m.lin@...el.com>, Oliver Neukum <oneukum@...e.de>,
	rjw@...k.pl, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Stefano Stabellini <stefano.stabellini@...citrix.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Michal Marek <mmarek@...e.cz>, Yinghai Lu <yinghai@...nel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Borislav Petkov <bp@...en8.de>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Siarhei Liakh <sliakh.lkml@...il.com>,
	Xuxian Jiang <jiang@...ncsu.edu>,
	Dave Airlie <airlied@...hat.com>, Tejun Heo <tj@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION] S3 resume on SandyBridge doesn't work with NX protection (5bd5a45)

Quoting matthieu castet <castet.matthieu@...e.fr>:

> Hi,
>
> Le Wed, 19 Jan 2011 18:37:11 +0100,
> Matthias Hopf <mhopf@...e.de> a écrit :
>
> > Git commit 5bd5a45 in Linus' tree "x86: Add NX protection for kernel
> > data" apparently breaks resume on SandyBridge machines. This is
> > supposed to be fixed with commit 691513f "x86: Resume trampoline must
> > be executable", but even git master (v2.6.38-rc1) shows the same
> > symptoms.
> Is it a 32bit or 64 bit kernel ?
>
> Could you post the dmesg of the kernel.
>
could you try the patch attached in
https://bugzilla.kernel.org/show_bug.cgi?id=27472

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